Clutch mechanism



spt. 4, 1923;]

Y L HREN ET AL;

cwfrcn' uncmmisu Filed Kay. 22. 1920 l INVENTORS, sEPHHRENT Cina;EISEN/:oma

Z8 and ATTORNEY,

Patented Sept. 4, 1923.

vUNITED :s T A'rssl PATENT OFFICE.

JOSEPH HRENQOF RosENDALE, NEW YORK, AND CARL ErsENLoHR,y 0E NEWARK,

. NEW JERSEY.

CLUTCH MECHANIVSM.

Application filed-May 22 1920. Serial No. 383,556.

To all whom t may concern.'

Be it knownthat we, JOSEPH HREN and CARL ErsENLoHR, citizens oftheUnited States, residing at Rosendale', New York, and Newark, New Jersey,respectively, have invented `a new and useful Improvement in ClutchMechanism, of which the following is a specification. n

This invention relates to clutch mechanism, the obiect being to providea clutch simple construction adapted for effective use in all work andfor all uses and under all conditions in which a clutch can be employed,and which is particularly adapted to the conditions of operation use assetforth ina patent granted to us February 11, 1919, No. 1,293,782,machine for making paper bo\Y` blanks, in which a box blank/is formedout ofthree sections, vim-a main section and two wing sections pastedthereto.

ln the operation of the above described machine the cardboard blanks arefed from niagaziijies, and during the feeding movement the wing sectionshave an adhesive applied to their inner edges after which the mainsection is lappedover the wing sections and attached one to the other bypressure and the principal object of our improved yclutch mechanism isto provide means to autinnaticall)v stop the Iabove described machinewhen the main magazine is empty or when two or more sheets are fedintothe machine at one time.

y To these ends, and to such others as the invention may pertain, thesame consists, further, in a novel construction, combination andadaptation of the parts, as will be here- Yinafter more fully describedand then specifically defined in the appended claims.

lnthe drawings, similar reference characters are employed to designatecorresponding parts throughout the views, in which F 1 is a sideelevation, in part section, of a Vportion of a machine for making paperbox blanks, and showing the driveA andy stop mechanism. f Y

Fig. 2 is an enlarged central section of the y Fig. 3.

Referring to Fig. l of the drawings, we

show at 10, a supporting table on which cardboard blanks 11 are heldinasuitable magazine l2.

In practice there are three magazines side by side, but for the purposeof this description the showing of the central magazine Vholding` themain" blanks will sufiice.

The cardboard blanks are fed` out of the magazine 12, one alt a time,byk pusher blocks (not shown) and are drawn between feed rolls 13 and14, and pass downwardly onto a pressure tablev 15, supported by springs1G, over which is arranged a presser foot 17, carried on an eccentric18, mounted on the clutch shaft 19, as shown.

A motor 20, is shown geared to a reducing train 21, in mesh with clutchgear 22, which is fast on a hub 23, normally loose on shaft 19. Gppositeto this hub there is threaded upon shaft 19, a collar 24, having apluralityr of beveled chambers 25.

Between hub 2B, and cellar 24, Ais placed a cage-disk 2G, having arcorresponding number of slots 27, to receive friction rolls 28.

Cage-disk 2G, is also provided with a segmental slot 29, against any endwall of which abuts one end of a spiral Vspring 30, the other end ofwhich bears against a pin 31, carried by collar 24. i rlhis springltends toso turn the latter, that friction rolls 28, arefforced into thecontracted portions of chambers 25, so that the rolls by bearing againstcagedisk 26, ,will force the latter into facewise contact with the hub23, and close to the clutch. Y c

Cage-disk 26 is provided with a shoulder 32, adapted to be engaged byeither of two dogs 33 and 34, pivoted to the machine frame (not shown).When either of the dogs are swung into the path of the shoulder 32, theywill, upon the rotation of shaft 19, come into engagement with saidshoulder, so that during the further slight movement of the shaft,cage-disk 26, will remain arrested, against the action of spring 30. Thecage-disk will thus become so llaced relatively to collar 24, thatfriction rollsr28, are made to face the expanded portion of chambers 25,and will consequently recede into said chambers and away from Acage-disk26,l The pressure of the latter against hub 23, will thus relax so thatthe clutch is opened or disengaged, and shaft 197Vwi1l no longerparticipate inthe rotation of the motor shaft as will be readilyunderstood.

(Ill

ion y As the cardlmard :sheets ll, 'tr-oni the magazine, in rapidsneces-'- .i, thin; pass iwi'- iier and elei'ate a roiler $35, carriedon a piroted lever 3G, hearing against a iod fil', connected to a hellcrank lever 3H, Yrhicl is Eoree Vthe nose oit dog out ot the pz; therotating` Shonl der 32, lint should the troni the ,mahnt/,ine stop, tlvlroller 3o,

drop and spring 4M), will. draw dop i., to the 'ltht and into the pathet shoulder 32, and

ihe inaciin Jie will he Stopped.

fis ahoi'e stated when iiiorn'iinp' ront hlanhs the edges o't theseveral sec ,i ,glued and snhjeclifd to preefsnre and provided automatictrippinig means, )ted to he oi'ierated as the it sure is `plied, whichcimipriss n arm `icd to the .inaeiiine nt eling; peilen i', io heldarri; il, in const., with an adgnstahie eert,

lvrraigijh the yielding' 'nre table lo.

,ihe bar lill, has a nose fio', normally enf 'z a tail-piece Ll-l',itorined on the dmY which is pivotcd at to the machin 'ti i i (notShown) and a pnll spring t) holds tail piece el-T, against nose and ateuch downward movement ot tl e presser Vtomi 1T, the iahle i5 is forceddonn slightly against the action oi? springs i6, but not enough to cansenose elif, to clear tail piece eti, when lint one :nain hlzinl; isnndei.' plessr foot i7, hat should the Yfeed go nroi T; and tn'o or moreblanks are fied at once the additimial thick between pressure table andpresser ill canse talile i5, to descend "niherr 'u slractnral elementsthereot are snslo such varIations z nd inodihratii a stop mechanism itera machine rj a magazine amY a presser table com- 'a pair olf dogs, tripdevices posiit`= o the magazine and und said trip de- 'i' (ne it til p'ie machine, con

neet i ons het Vices in combination wifh a olnteh having a 1 ,vriiijiping device on the presser tahie oit the inachnie, a pair ot dogs,a train engaging' said trippingl devi es and ot links c wmlnnatam with aclnlch hanne' dogs, in a shoiilder to en;`r either -oif said dogs tostop the machine as dcribed.

I5. ln, i` stop niechanism tor a machine having;i a magazine and apresser table, a latein a no feed trip device positioned ai, Yhe monthet the magazine, a multiple sheet trip device on the presser table andine: ns operated hy said trip devices to engage the clutch to step themachine a s described.

ai. ln a stop mechanism tor a machine having a magazine and a pressertable, a clutch, trip devices positioned at the month of the magazineand on the prV er table, and means ope ated by the trip devices toengage the clutch to stop the niaehine as described.

5. Ti a stop mechanism tor a machine having; a magazine and a pressertahle, a lripper positioned to be operated by sheets discharged troiathe magazine, a tripper on the presser table, e clutch, and meansoperated hy the said trippers to engage the clutch and stop the machineas described.

lin testimony Vwhereof, we have signed our naines to this speeitieationthis itth day of AprilB i920.

JOSEPH HREN. CARL EISENLOHR.

